Separate every launch figure by architecture and grade. Verify battery, motor, engine, range, charging, tank, fuel, masses, safety and support. Inspect packaging, assess the charging site, drive city and highway loops and observe the REEV after its generator activates. Compare the complete ownership term rather than one energy headline. The chosen B10 should solve the buyer's real route and infrastructure problem, not merely carry the preferred label. Keep the dated brochure, quotation and warranty registration together, and match cables, software and promised equipment at handover. Recheck the plan after the first representative week of driving so charging time and energy cost reflect the owner's real pattern. Ask for a demonstration of scheduled charging, battery preconditioning and every energy display. Verify whether the REEV can preserve electric charge for a later urban zone and whether its generator has operating restrictions when stationary or towing. Check that service quotations distinguish the engine-related work from high-voltage inspections. A household should repeat its longest normal day on paper with both architectures, including an unexpected detour, before deciding which system removes more anxiety. The right answer may differ between a driver with home charging and one who relies on public infrastructure.